用于地表水反硝化的纤维素碳源选择研究

为了选取合适的天然有机物作为反硝化细菌碳源用于解决地表水中NO3--N污染问题,以江南大学校内湖水为接种物,选取8种天然纤维素碳源在缺氧状态不同的处理方式下对60 mg/L NO3--N的降解特性进行研究。结果表明,以碱处理作为预处理可明显提高反硝化速率,碳源脱氮率均在96%以上（树皮除外）。2种处理方式中均有NO2--N累积,部分碳源释放NH4＋-N并发生DNRA反应,树叶在2种处理中脱氮效果均较好。结合各碳源脱氮率、耗碳源量以及处理成本,选取基本处理的香樟叶作为最佳纤维素碳源。

Selection of cellulose carbon sources for biological denitrification of surface water

In order to select appropriate natural carbon sources for biological denitrification to solve the Nitrate-N pollution of surface water,This paper described the effect of denitrification from eight selected cellulose carbon sources to 60 mg/L Nitrate-N under the anoxic conditions.The experiment was carried out with the campus pond as inoculum in Jiangnan University by basic and alkali two pretreatment methods.The results showed that the cellulose carbon source which was pretreated with alkali had better deni...